Ruminant

Question 1

Strongylids/Trichostrongyles, GIN

Answer 1

GIN - Gastro Intestinal Nematodes
common name - strongyles & trichostrongyles
- can cause diarrhea, most are subclinical

Question 2

Muellerius capillaris, Protostrongylus spp., Dictyocaulus spp.

Answer 2

common name - lungworms (M. capillaris - hair lungworm)

• disease known as “bovine verminous bronchitis”
• Dictyocaulus spp., seen mostly in dairy calves, immunity develops quickly cattle may die if exposed to large # of larvae while grazing
• larval dispersal from fecal pat during grazing season by a fungus

Question 3

Strongyloides papillosus

Answer 3

common name - threadworm

- same clinical signs as other threadworms

Question 4

Trichuris spp.

Answer 4

common name - whipworms

- same as other whipworms

Question 5

Ruminant tapeworms

Answer 5

Moniezia expansa, Moniezia benedeni, Thysanosoma actinoides (common name - fringed tapeworm)

Question 6

Paramphistomum spp.

Answer 6

common name - rumen fluke

- Found in rumen of cattle, sheep & goats

Question 7

Dicrocoelium dendriticum

Answer 7

common name - lancelet fluke

- Found in bile ducts of sheep goats cattle, pigs, dogs, horses & rabbits

Question 8

Tritrichomonas foetus

Answer 8

• Protozoa of urogenital system of cattle
• Spread through sexual transmission – usually via bull through herd
• Causes abortion/pyometra in cows
• Becoming rare due to AI